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Which of the following is true?...

Which of the following is true?

A

`sin^2(2tan^-1sqrt((1+x)/(1-x)))=1-x^2, -1 le x lt 1`

B

`sin(2tan^-1sqrt((1+x)/(1-x)))=1-x^2, -1 le x lt 1`

C

`sin^2(2tan^-1sqrt((1+x)/(1-x)))=(1+x)/2, -1 le x lt 1`

D

none of these

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The correct Answer is:
A, B, C
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